brewer's yeast

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brewer's yeast:

see yeastyeast,
name applied specifically to a certain group of microscopic fungi and to commercial products consisting of masses of dried yeast cells or of yeast mixed with a starchy material and pressed into yeast cakes.
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References in periodicals archive ?
Brewer's yeast, an organism known as Saccharomyces cerevisiae, is a nonleavening dried yeast, in contrast to active "baker's yeast," which is used to leaven baked goods.
The brewer's yeast that's sold as a dietary supplement is either recovered as a byproduct of beer-making or is cul-tivated specifically for human consump-tion, in which case it may be called "nu-tritional yeast" or "primary yeast" and may be slightly more palatable.
The value of brewer's yeast pretty much ends there, though lots of other claims are made for it.